WKG035BR09Y01 is a high-performance BeiDou (BDS) single-constellation positioning module with a compact size of 43 × 43 × 11.7 mm. It is based on the AT9850B-F7N22 SoC from Zhongke Micro, which integrates an RF front-end, digital baseband, multi-frequency BeiDou signal processing engine, and power management unit, providing high integration and simplified external circuitry. The module supports BeiDou-2 and BeiDou-3 signals.

Leveraging proprietary fast acquisition technology, WKG035BR09Y01 can quickly capture a large number of visible satellites, enabling fast and accurate positioning. It significantly improves positioning performance in challenging environments such as urban canyons. The module integrates a high-performance embedded CPU and supports a maximum position update rate of up to 10 Hz, making it suitable for high-dynamic applications sensitive to positioning latency. It also features dedicated anti-interference hardware acceleration circuitry for rapid detection and suppression of RF interference.

With high sensitivity, low power consumption, and cost efficiency, WKG035BR09Y01 is suitable for applications such as vehicle navigation, handheld positioning devices, and automotive rearview mirrors. Based on an integrated navigation SoC architecture, the module supports high-accuracy positioning and timing applications while offering high integration, high performance, and low power consumption. It is applicable to automotive navigation, smartphones, IoT devices, and UAV applications.

Key Features

l Supports BDS-2 / BDS-3 (B1I/B1C/B2I/B3I/B2a/B2b)

l Supports A-BDS

l Cold start sensitivity: -148 dBm

l Hot start sensitivity: -156 dBm

l Reacquisition sensitivity: -160 dBm

l Tracking sensitivity: -162 dBm

l Position accuracy: 1m (CEP50)

l TTFF: ≤20s

l Operating Current: ≤ 45 mA

l Standby Current: ≤ 30 µA

l Integrated LNA

l Stacked Ceramic Antenna (25 × 25 × 4 mm + 35 × 35 × 4 mm)

l Fast hot start (<1.5s) with onboard capacitor

l Standard NMEA-0183 output

Applications

l Vehicle navigation and tracking

l Power timing / 4G/5G synchronization

l IoT positioning devices

l UAV (drones)

l Portable device

Assisted GNSS

Supports A-BDS, providing assistance data such as ephemeris, approximate position, and time.

This significantly reduces Time-To-First-Fix (TTFF), even in weak signal environments.

Output Protocol

The module outputs data via RS232 interface using NMEA-0183 protocol.

Performance Specifications